farrar



Nfov. v20, '1923` F. W. FARRAR sEAM RUBBING MACHINE Filed Oct. 21. 19202 Sheets-Sheet 'l Nov.E 20 1923 O F. W. FARRAR sEAM RUBBING MACHINEFiled oct. 21 1920 2 Sheets-Sheet 2 Patented Nov. 20, i923.

UNITED STATES PATENT OFFICE.

FREDERICK WILLIAM FARRAR, OF LEICESTER, ENGEAND, ASSIGNOR T0 UNITED SHOEM'ACHINERY CORPORATION, OF PLTERSON, NEVJ JERSEY, A CORPORATION OF NEWJERSEY.

SEAMRUBBING MACHINE.

Application led October 21, 1920. Serial No. 418,549.

in United States Letters Patent No. 1.259,13@ granted on application otW. T.

Roberts March l2, i9i8, liled June 26,

provide a machine of this character which will enable better work to beproduced and which will call for less skill and experience on the partot the operator. Heretofore, in the operation or seam rubbing machines,the ditiiculty has arisen that the seams are not properly opened up andthe two upstanaing raw edges oi'l the work are apt to be turned down,both on the same side of the seam. To overcome this objection, onefeature oi: the invention consists in the provision of a. rotary plowwhich aids in feeding, and spreads the margins of two pieces oi1 workwhere they proj ect beyond the seam uniting them, and a work supporthaving a ridge which engages between and separates the work pieces onthe other side of the seam. ln the illustrated embodiment, there is alsoprovided a rotary feed roll which may be formed in sections, preferablyarranged to engage the work pieces yieldingly at the sides of the ridge.

Another ob'viect oi the invention is to provide an improved work supportwhich will enable closed7 boot uppers or other work to be placed easilyin a position to have the seams rubbed, the construction being such thatthe work also may be removed r "ly from the machine when the rubbingmentalities have completed their work. ln accordance with this feature,there is provided an upright post having a shelving work surface overwhich closed boot uppers or other work may be threaded, and means todepress the post to provide Jfor removal oit the completed work.

Referring to the drawings: lug. l is a iront elevation, partly in section, oit the complete machine;

riiig. 2 is elevation, partly in section, of the rotating 'reed shaftand its associated parts;

l." ig. 3 is a detail view of a portion oill the parts shown in Fig. 2illustrating diagrammatically their presumed mode of action upon thework;

`ig. a is a top plan view, partly in seo tion, of the rotating feedshaft and associated parts;

`Fig. 5 is an enlarged side elevation, partly inpsection, ot the worksuport;

Fig. 6 is a front elevation of a portion of the work support;

Z is a detail section showing the manner of ustingl the height ot thework support.

ri`he framework oi: the machine, including the shafts and drive gearing'for the rotating` tools, is., or may be, similar to the structure shownin the Roberts patent above referred to. lt comprises a projecting armor gooseneck 8 which carries, in suitable bearingc4 in a brariret le, ashalt lO having on one end a work rubbing roll or flattenl ing tool l2.The bracket 14 may be pivotally mounted to swing on the trunnions 1G andin order to hold the rubbing roll l2 yieldingly against the work aspring 18 may be interposed between the bracket and the 'frameworklileferring more particularly to Figs. 2 and 3, where my seam openingand guiding device is shown in detail, there is prov a driven Afeedshait 2O on which is mounted a feed roll comprising conical sections 22and 2a' adapted to iorm, in co-operati with the inclined faces of theblock or anvil (it), hereinafter referred to, a substantially parallelsided inverted if-passage 26 for the .if'ork. Vhe conical portions aretruncated so as to have narrow annular faces 28 at their smaller endsand on the driven shait 20 between these faces, there is formed a seamopening and feed member comprising peripheral rib or plow member 32 oica diameter slightly larger than the diameter of the narrow faces 28 andgradually increasing in thickness from its portion of greatest diameterto that portion oi it which oins the driven shaft. The driven shaft 20is formed at each side of the rib 32 with 4 in the casing.

shoulders 311 which form stops to limit the movement of the springpressed conical sections 22, 2li towards the peripheral rib vThus thereare small spaces between the narrow faces 28 and the sides of the rib32, these spaces being provided to pi; vent stray ends of thread and thelike from being pinched and caught between the narrow faces and the rib.'lhe conical sections are urged axially towards the rib by springs 3interposed between the ends of the sections and collars 38, el() fast onthe driven shaft 20. rthe conical sections 2Q, 24 are constrained torotate with the driven shaft 2O by pins 4:2, t, respectively, projectingaxially from the iiXed collars 38, ld and enterine` openings in theconical sect-ions.

lo drive the feed roll, the driven feed shaftQO may be connected to, orformed integrally with, a drive shaft n'iounted .in bearings 48 and 50on a bracket 52, pivote-d as indicated at 54, to the framework. rifopress the feed roll downwardly the work, the spring 56 may be interposedbetween the framework and the bracket 32. At 58 in F ig. l is indicatedpressing or ironing roll and this roll, together with the drive shaft46, may be supported and driven as described in the ltoberts patentreferred to.

Referring more particularly to Fics. and 6, the block or anvil GO whichconstitutes the worl; support is provided with two faces 62 inclined tocach other and meeting in a ridge 6dbaclr of which is a flattenedportion (56 which receives the pressure of the work rubbing roll. 60 hason its lower face a tongue which is clamped in a dovetailed groove 68formed in the upper face of a vertically sliding upright post 70 mountedin the casing 72. rlhe block 60 is clamped in the post 70 by clampscrews 71tand is adjustably lixed in position by a screw 76 threadedinto the block and having its head in engagement with a face of 'thepost 70.

To actuate the post 70 to apply or remove the work, there is provided inits lower end a recess in which is pivoted one end of the link 78, theother end of 'the link pivotally connected to a lever 80 pivoted Thelever 8() is pivoted ou an eccentric portion S2 of a stud Set which isrotatably mounted in bearings on the casing. To adapt the machine ordifferent varieties of worlr, this stud is pro d with a head 86 by whichit may be rotated to adjust the post TO vertically. rllhe stud may belocked in its adjusted position by a nut 88 on one end. The block GOheld in a normal raised position by a spring 90 fastened at one end to ahook 92 and at the other end to an arm 9e of 'the lever 80. A face 96 onthe lever and a pin 98 on the casing limit the height of the bloclr, the

T he bloeli o parts being normally in a position in which the link f8and the arm of the lever 80 to which it is coupled, constitute a more orstrainghtened toggle supporting the block against heavy downwardpressure. 'llo lower the bloei: 60 for removal of work the lever 8() haspivotally connected to it at i0() a treadle rod ll, and to limit thismovement, there are provided a lug 101ion the lever 8O and -a stop face10G on the casing. rllhe contour the blocl: is shelving and is such thata closed7 boot upper er the like can be threaded conveniently over itthe work passes beyond the point of operation. rl`he work pieces mayalso be withdrawn alone or with others when a a number of them have thusaccumulated on the block, this being accomplished by a depression of thetreadle rod to provide the necessary clearance between the post and therotating rolls.

ln operation, when the leading edge of a piece of work lV (fed up theridge of the bloeit 66 by the operator) encounters the feed roll, theconical sections 22, will be forced apart by the portions of worlr lyingon the inclined faces 62 of the block,

and the rib 32, which is in line with the ridge of the anvil, will enterbetween the upwardly projecting raw edges of the two pieces of `materialW joined by the seam, as shown in l. These edges will thus be fed anddefinitely spread apart in opposite directions away from the seam inpreparation AIfor the action of the rubbing Vtool or other flatteningdevice.

Although 'the invention has been set forth in connection with a machinefor pressing seams and has been described as particularly adapted foruse in shoe manufacture, it should be understood that the invention isnot limited in the scope of its application to the particulai` machinewhich is shown and described nor to use with any particular material.

Having thus described my invention, what l claim as new and desire tosecure by Letters Patent of the United lfitates is:

l. in a seam rubbing machine, a worlr support having a. ridge toseparate Vthe worl: pieces on one side of the seam, and a mechanicallyactuated plow to feet and separate the margins of the two pieces of workwhere they project beyond the seam.

2. ln a seam rubbing` machine, work support, a rotary shaft, and adevice positively actuated by the shaft progressively to separatethermargins of two pieces of vork where they project beyond the seam,said device comprising an annular plow and yieldingly mounted feed rollsori-opposite sides of the plow.

3. ln a machine of the class described, the combination with a worksupport having a ridge, of rotary members mounted for relal-lO tiveyielding axial movement to engage the work on each side of the ridge.

a'. In a seam rubbing machine, a work support, a rotary shaft, feedmembers mounted to slide axially on the shaft, and spring means arrangedto move the members axially to press them yielding against work on thesupport.

In a seam rubbing machine, a stationary work support, a rotary shaft,and feed members mounted on the shaft for yielding axial movement.

6. In seam rubbing machine, a work support having a ridge, a rotaryshaft, and a driven feed roll comprising two conical portions yieldinglyurged toward one another to press the work on the sides of the ridge.

7. a machine of the class described, a work support having a ridge, arotary shaft, and a driven feed roll mounted on the shaft and comprisingrelatively axially yieldable conical portions arranged to press the workon the sides of the ridge.

8. In a seam rubbing machine, a work support, a rotary shaft, conicalmembers slidably mounted on the shaft, and means to press the conicalmembers toward each other.

9. In a seam rubbing machine, a work support, a rotary shaft having aplow, conical members slidably mounted on the shaft, springs to pressthe conical members toward each other, and means to limit the approachof the conical members toward the plow.

l0. In a seam rubbing machine, the combination with a work support, of arotary plow, and yielding means acting on the work at the side of theplow to press the work toward the plow.

11. In a seam rubbing machine, a work support having a ridge, a rotaryplow, and feed members mounted to rotate with the plow and constructedand arranged to press yieldably towards the sides of the ridge.

12. In a seam rubbing machine, a plow, and a driven, work-feeding membercomprising relatively axially movable sections to engage the work at thesides of the plow.

13. In a seam rubbing machine, the combination with a work supporthaving a lidge, of a rotary member having a peripheral rib, and conicalmembers at the sides of the rib to press the work on the sides of theridge.

14. In a seam rubbing machine, the combination with a support having aridge, of a rotary plow, and means coaxially arranged with respect tothe rotary plow for yieldplow.

15. In a seam rubbing machine, a work support having a ridge, a plow,and rotary members mounted for yielding axial movement to engage thework at the sides of the ridge.

16. In a seam rubbing machine, a work support having a ridge, a rotaryshaft having a rib to enter between the margins of two pieces of workwhere they project beyond the seam, and rotary members mounted on theshaft for relative yielding movement to engage the work on each side ofthe ridge.

17. In a seam rubbing machine, the combination with a work supporthaving a ridge, of a work feeding roller comprising relatively yieldablesections to engage the work at the sides of the ridge, said feed rollersections also having provision for yielding in a direction transverselyof their axis.

18. In a seam rubbing machine, a rubbing tool, an upright post having astationary shelving work surface over which closed work may be threadedas the seam is rubbed, and means to depress the post to provideclearance between the latter and the rubbing tool for the withdrawal ofthe work.

19. In a seam rubbing machine, a rubbing tool, an upright post overwhich cclosed"` work may be threaded as the seam is rubbed and having awork-supporting surface consisting of a ridge merging into a plane,means to sustain the post rigidly against the rubbing pressure, andmeans to release the sustaining means to depress the post for removal ofthe work.

20. In a seam rubbing machine, a rubbing tool, a post over which closedwork may be threaded as the seam is rubbed and having a work-supportingsurface consisting of a ridge merging into a plane, a toggle to sustainthe post rigidly against the rubbing pressure, and means to break thetoggle to depress the post for removal of the completed work.

21. In a seam rubbing machine, a rubbing tool, a work supporting postover which closed work may be threaded as the seam is rubbed, a toggleto sustain the post rigidly against the rubbing pressure, means toadjust the position of the toggle, and means to break the toggle todepress the post.

In testimony whereof I have signed my name to this specification.

FREDERICK WILLIAM FARRAR.

